Pipe-cutter.



I. W. HONNBMAN,

PE CUTTER. APILIOATION FILED 00T. 29. 1.912.

I, W. NGNNEMN.

PIPE GUTTER.

APPLICATIGN FILED 00T. 25, 1912.

1,076,228. Patented oct.21.191

2 SHEETB-BHEET l.

m WM am.'

UNTTED STATES PATENT OFFICE.

.m w. -Nomwmm or wAnnEN, omo, asslenon 'ro m 303mm contempo! WARREN, omo, a consumeren or omo.

, maintiennent.

, annua autoctoni-29,1912; semi in;k 728,416.

Patented oct. 21,1913.

To all whom, it may concern.'

Be it knownthat 1I,IRA NQNNEMAN, of Warrem in' the county of Trumbull and Statexif Ohio, :have invented certain new and useful' Improvements in' Pipe-Cuttersj and Ido hereby declare the following to be a. full, clear, and exact description of ,the invention, such as will enable others skilled in the art to which it appertains to'make and'use the same.'`f

The primary object o f this inventionis to provide .an extremely simple and inexpen; sivev pipe+cutter=wherein the cutting mecha@ nism'rwizll'be' positively forced into engage-. mnt1with the pipe by vthe resistance of the latter-'to thel chuckqr pipe-engaging jaws.

In theaccompanying drawings, -Figure ismn 'elevation ofv a pipe cutter embodying my invention. Fig. 2 is a plan view. Fig. 3 is a section on line 3-3, Fig. Fig. 4 is a perspective view of detached parts. f

Referring to the drawings, .1 designates a frame having at one end a `socket 2 fora relatively fixed handle rod, and at the other end an internally threaded elongated socket 3 for a longitudinally adjustable handle rod. 4.

The pipe-clamping; means comprises 'twO jaws -or chuck members 5 and 6, the former ylm .vixtga plate portion slidable in lguides on one side of frame l, and the'other having a corresponding plate portion slidable ,in guides on one side of a block 7 which in turn is slidable on the frame. The inner end of vhandle rod 4 is secured to this block so that the latter may be moved back and forth kon the frame by turning the rod.

The cutting mechanism is shown as comi posed of tworknives 8 andcomplementary guides 9, each knife and its respective guide being formed from a single plate 10 after the manner disclosed in the application for patent of Alfred lF. Howe, tiled Oct. 30', 1911, Serial No. 657,564. The plates 10 are shown as secured to two plates 12, of which4 one vis slidable in guides on -one side of the frame, and the other in guides on the corresponding side of block '7, with the result that the cutting and guiding lates are in the same plane on one side of t e frame and the pipe enga ing jaws are in a common plane on the ot er side.

Within the frame and also' within block 7 are locate-d short 'levers 13 movable on planes at right-angles to the plane of movelagainst the ',pipe.,

ment Iof the cutters Vand jaws.' levers are fulcrumedon pins 14, and the ends'ofsaid levers` project slots fox-ined .in the plate portlonsof the jaws andgalso .in .the

knife`carryingv p lates 10. j Outward pres- Vsure on the jawswill, through of the levers, cause -the'plates 10 and ,their knives, and guides to movev inwardlyftoward.

each other, so that in applying the to' a p ipe, as thev jaws engage the the sistanceoccasioned thereby forces the knives In practice, the 'jaws are separatedjsullt clently4 to 'permit the tool to fbe positioned on the pipe by turning rod,4,a.n'd after the' tool is properly presented, saidrod istu'rned to -,b1rin'g vthe Ajaws and knives into engage' ment with the pipe.l The cutting is effected 1n the-usual way, namely, .by turning the toolon the pipe, and asth'e cutting rogresses, the adjusting rod is turned 'om time to time, but inasmuch as the jaws after being set cannot move any closer to eachl other, the resistance is communicated tthe kliliife-carrying plates through the agency of t e` andtheir. guidesare kept u to theirgwork' until the cuttingoperation ,is completed.

1. Arplpe cutting tool com `pipe'- Aclamping" jaws between whic there is arelartlve adjustment as the' tool is 'being plled to a p1p,sa1d jaws maintaimng'a fixed relation to each other' during the cutf.

Witt necting the same so that thejaw's will be forced into engagement I -with the pipe by .the resistance offeredby vthe latterto ,the jaws, and means for adjustingithe cutting means as'the cutting operation progresses.

2. A pipe cutter comprising'a'fra'm'e`hav ing oppos1telydisposed jaws between which there 1s a relative adjustment, means for ef 1,00

fectiv such adjustment, opposed' cutters levers, with the' resultth'at the knives' operation, cutting means coperatipg. sald jaws and means operatively con-'1 slidab y mounted relatively to said jaws, and A,

means intermediate of each jaw and its respective cutter for forcing the latter into engagement wlth a pipe by theresistance of the latter to the jaws.

3. A pipe-cutter comprlsing a frame, op-

positely disposed slidable jaws, cutters co operating with said jaws, each 'cutter being slid-ably mounted on a plane paralleling the sliding movement of the jaws, means for 110 I I causing the cutters to be moved in opposite direction to the jaws, and means for eiectmg a relative bodily movement between the f jaws and the cutters.

4. A pLipe-cutter comprising a frame, oppositely is osed slidable jaws, cutterseooperating with said jaws, each cutter being slidable on aI plane paralleling the sliding vmovement of the jaws, means actuated by ,the resistance of the jaws in engaging a pipe for causing the cutters to be moved toward to be moved toward the pipe by the resistance'of the pipeto the jaws, and mea-ns for effecting a relative bodily movement between u the jaws andthe cutters.

6. A pipe-cutter comprising a frame, a jaw slidably mounted thereon, a cutter slidable on a plane paralleling the plane of movement of the jaw, a lever mounted in said frame and movable on a plane at right anglles to the planes of movement of the jaw and cutter, said lever engaging said jaw and cutterv and designed to move the latter toward a pipe by the resistance of the pipe tothe jaw, a second jaw in line with the first-mentioned jaw, and a second cutter in line with the first-mentioned cutter, and means for effecting a relative bodily movement between the two jaws and two cutters. 4

7. A pi e-cutter comprising a frame, a jaw slidab y mounted thereon, a cutter slidable on a plane paralleling the plane of movement of the jaw, a lever mounted in said frame and movable on a plane at rightan les to the planes yol. movement of the jaw ancgi cutter, a block slidable on said frame, a4 rod for adjusting said block, a jaw slidably mounted on said block in line with the rstmentioned jaw, a cutter slidable on said block in the plane of the first-mentioned cut-| ter, and a lever mounted in said block and engaging the second mentionedj aw and cutter, sai levers forcing said cutters toward a pipe jaws. c

48. A pipe-cutting tool comprislng opposed 'jaws and opposed cutters, means for ei'ectmg a relative movement between the sets of jaws and cutters, each jaw 'and each cutter lby the resistance of the latter to the l being slidable in parallel planes, and rocking members movable on planes at right an les to the planes of movement of the jaws an cutters, such rocking members engaging each a jaw and a cutter, said cutters being forced lnwardly by the resistance of a pipe to the jaws.

I testimony whereof, I have signed this specication in the presence of two subscribing witnesses.

IRA W. NONNEMAN..

Witnesses M. W. BECHSEL, A. J. SUTCLIFFE. 

